A 2002 film biography based on a true event and reconstructing the life story of the four-time German serial killer Jrgen Bartsch is wearing short trousers for a lifetime. The book Jrgen Bartsch: Victims and perpetrators of the German-American Paul Moor, who after the first trial made contact with Bartsch and became a kind of father figure for the 19-year-old murderer over eight years is the basis of the script. The circumstances of both processes, the differing perception of the case in public, detailed background information, and the audio recordings made for the interrogation and evaluation of Bartsch are all included in the book. The view of Bartsch is the focus of the film.